Libraries by name

The kdecore library is the basic application framework for every KDE based program. It provides access to the configuration system, command line handling, icon loading and manipulation, some special kinds inter-process communication, file handling and various other utilities.

The kdeui library provides many widgets and standard dialogs which Qt doesn't have or which have more features than their Qt counterparts. It also includes several widgets which are subclassed from Qt ones and are better integrated with the KDE desktop by respecting user preferences.